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    The elaboration of a new family of helicopter blade profiles (1981)
    In:  CASI
    Details
    Publication Date: 2019-08-27
    Description: An airfoil family of helicopter rotor blades was designed. Three airfoils with thickness to chord ratios of 12, 9, and 7% were designed. Their improved performance in two dimensional rotor mockup wind tunnel tests led to testing of the tapered blades on four bladed rotors in a wind tunnel and flight tests on the Dauphin series of helicopters, confirming the expected gains.
    Keywords: AERODYNAMICS
    Type: NASA-TM-75907
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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